[16p-K305-1~16] 3.13 Silicon photonics, Photonics-electronics convergence, Optical control

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[16p-K305-13] Demonstration of Si Photonics Grating Coupler Exhibiting a Flat Coupling Efficiency Spectrum

〇Naoki Tahara¹, Shota Nawa¹, Mikiya Kamata¹, Yuriko Maegami², Tai Tsuchizawa², Noritsugu Yamamoto², Koji Yamada², Toshihiko Baba¹ (1.Yokohama Natl Univ, 2.AIST)

Keywords:

Silicon photonics,Fiber coupler,Grating coupler

We fabricated and evaluated a grating coupler for coupling between Si waveguides and out-of-plane optical fibers, designed to exhibit a flat coupling efficiency spectrum suitable for wavelength-division multiplexing communication. The coupling efficiency between the grating coupler and a vertically aligned single-mode fiber reached a maximum of -1.1 dB, with a 1 dB bandwidth of 54 nm.